and steve penn. steve, twitter's ipo, the company still isn't profitable. is all this investor exuberance, does it make sense? or is this reminiscent of the dot com bubble? >> i would say it doesn't make sense if you just look at twitter's financial earnings. i mean, i think if you look at their share price, their stock price, how much it rose the first day, i think that had less to do with the fundamentals of twitter as a company than with supply and demand for that stock on the market. twitter has more than 200 million users, billions of people know about it. but the amount of stock they issued was relatively small in comparison. i think there is a little bit of a mismatch on the stock markets and that generated a big price spike. i also don't think that twitter is truly a pets.com. this is a company that has been -- >> let's hope not. >> -- been around for years, it's generating hundreds of millions in revenue, its revenue is growingpy 100% a year. it has a very engaged user audience. it's a real company with real revenues. they're not profitable now bec